Results 101 to 110 of about 1,891,322 (231)

Status of the Standard Model of Particle Phenomenology [PDF]

open access: yesarXiv, 2003
The standard model is healthy is all respects except for the non-zero neutrino masses which require an extension of the minimal ...
arxiv  

Beyond the Standard Model’ 17

open access: yes, 2018
We discuss the status of the Standard Model (SM): the principles; the Lagrangian; the problems; open questions and the ways beyond. Then we consider possible physics beyond the SM: New symmetries (Gauge, SUSY); New particles (gauge, axion, superpartners); New dimensions (extra, large, compact, etc) or a New Paradigm (strings, branes, gravity).
openaire   +3 more sources

Status of the Standard Model [PDF]

open access: yesarXiv, 1998
We review the experimental and theoretical status of the standard electroweak theory, and its fundamental parameters. We obtain the global best fit result for the Standard Model Higgs boson of M_H = 107^{+67}_{-45} GeV, and find the 95% upper limit of 255 GeV. Parameters describing physics beyond the Standard Model are discussed as well.
arxiv  

Theory of rare charm decays [PDF]

open access: yesarXiv, 2013
Recent disagreement between experimental measurments of CP violating asymmetry in D -> K+ K- and D ->pi+ pi- and theoretical Standard model expectation motivated many studies within the Standard model and beyond. Rare charm decays offer new probe of possible signals beyond Standard model. CP conserving and CP violating contributions within the Standard
arxiv  

Singlet scalar top partners from accidental supersymmetry

open access: yesJournal of High Energy Physics, 2018
We present a model wherein the Higgs mass is protected from the quadratic one-loop top quark corrections by scalar particles that are complete singlets under the Standard Model (SM) gauge group.
Hsin-Chia Cheng   +3 more
doaj   +1 more source

Some Physics Beyond the Standard Model at Gamma Gamma Colliders [PDF]

open access: yesarXiv, 2004
In this talk, I describe a few interesting physics beyond the standard model that are quite unique for $\gamma\gamma$ collisions, including large extra dimension model (ADD), warped extra dimension model (Randall-Sundrum) model, universal extra dimension model, as well as techni-pions of technicolor models.
arxiv  

Non-standard Neutrino Interactions [PDF]

open access: yesarXiv, 2009
Theories beyond the Standard Model must respect its gauge symmetry. This implies strict constraints on the possible models of Non-Standard Neutrino Interactions (NSIs). We review here the present status of NSIs from the point of view of effective field theory.
arxiv  

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